Different types of radiation have different penetrating abilities. for example, gamma rays can pass through cloth and paper, but alpha particles are blocked by cloth and paper. beta particles are blocked by aluminum foil, but gamma rays are not. however, all three types of radiation are blocked by thick concrete or lead.
now, examine a table of penetrating powers of different types of radiation.
material
1 2 3 2
lead stopped stopped stopped
cloth not stopped stopped stopped
aluminum foil not stopped stopped stopped
wood not stopped stopped stopped
paper not stopped stopped not stopped
thick concrete stopped stopped stopped
based on the information, at which numbered spot in the table does each type of radiation belong?
1 = beta; 2 = alpha, 3 = gamma
1 = alpha; 2 = beta, 3 = gamma
1 = beta; 2 = gamma, 3 = alpha
1 = gamma; 2 = alpha, 3 = bet
Answers: 1
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